Chimney-flue.



No. 638,7l3. Patented Dec. l2, I899.

J. F. HILL.

CHIMNEY FLUE.

(Application filgd Aug. 16, 1899.)

(No Model.)

WITNESSES INVENTOR A ltarney 1m: uoams PETERS cc mom-umu. wnsmuamn, u. c.

UNITED STATES PATENT GEEIcE. Y

JACOB F. HILL, OF NANTICOKE, PENNSYLVANIA.

CHIMNEY-FLUE.

SPECIFICATION forming part of Letters Patent No. 638,713, dated December 12, 18

Application filed August 16, 1899. Serial No. 727,357. (No model.)

T0 00% whom it may concern:

Be it known that I, JACOB F. HILL, a citizen of the United States, residing at Nanticoke, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Chimney-Flues; and I do herebydeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to chimney-fines; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a vertical section of a portion of a chimney-flue constructed according to this invention. Fig. 2 is a similar section of a portion of a chimney-flue, showing a modification. Fig. 3 is a cross-section through the chimney-flue. Fig. 4 is a section of a portion of one of the flue-plates, taken on the line a: x in Fig. 3.

Aisachimney-flue,which is partly or wholly formed of hollow metallic side plates B. These plates have internal chambers 12 for water or other fluid and are all similar to each other.

C is the outer casing of the chimney, which is of brick or other building material. The flue may be wholly or partly incased with the building material, or it may be formed partly of hollow metallic side plates and partly of building material.

The hollow side plates B are cast in sections of any convenient length, and the sections are connected together by coupling pipes or nipples b at their adjacent ends.

D and D are branch pipes connected to the hollow side plates at appropriate points and leading to radiators or other heat-difiusin g devices in the various rooms of the building to which the chimney-flue is connected.

The water-chambers are supplied with water in any approved manner, and the branch pipes and heating devices are arranged so that the water is circulated in the chambers as long as heat is passing up the chimney. Any number of branch pipes may be connected to the sections in any approved manner, both for hot water and return water. The chain bers may extend continuously from the top to the bottom of each section of each side plate, or they may be provided with partithey compel the heated products of combustion to follow a tortuous path in passing up the chimney. In Fig. l the protuberances are arranged spirally, so that the products of combustion follow a spiral path. In Fig. 2 the protuberances of the adjacent side plates are arranged out of line or alternately, so that the products of combustion follow a wavy path, being guided from side to side and defiected in two planes. The side plates are fitted together at their edges as shown in Fig. 3 or in any other approved manner. The ends 6 of the protuberances E are preferably arranged to abut against the inner faces of the adjacent plates, so that the protuberances form stops for the adjacent plates and prevent them from being pressed in ward into the smoke passage and also assist in making smoke-tight joints between the side plates. The side plates are secured together by any approved fastening devices or by being built into the outer casing of the chimney. The sections can be built up in and arranged inside existing chimney-flues, if desired.

When a chimney-flue is constructed in this manner, much of the heat which ordinarily is discharged at the top of the chimney into the atmosphere is absorbed by the water in the water-chambers, and the water is conducted by the branch pipes to various points in the building, where its heat can be radiated and utilized to good advantage.

What I claim is-- 1. In a chimney-flue, the combination, with a series of side plates arranged with their edges overlapping each other and forming a rectangular smoke-passage, said plates being provided with water-chambers and having hollow protuberances on their inner faces; of an outer casing of building material inclosing the said plates, substantially as set forth.

2. In a chimney-flue, a series of side plates arranged with their edges overlapping each chambers and having hollow protuberances arranged spirally upon their inner faces, substantially as set forth. 7

4. In a chimney-flue, a series of side plates provided with Water-chambers and arranged with their edges overlapping each other and forming a rectangular smoke-passage, said 15 plates having on their inner faces hollow protuberances the ends of which abut against the faces of the adjacentplates, substantially as set forth.

In testimony whereof I afiix my signature :0 in presence of two witnesses.

JACOB F. HILL.

Witnesses:

T. D. GARMAN, NELLIE C. GARMAN. 

